Sigma Discussion?

Why aren't there more people talking about this board? This seems like an amazing machine for the price.

There are questions I have about this new SBC.

I purchased the 864s full package. Does the 7" touchscreen work on the Sigma?

In pictures, it looks like it has a case already - is this true? Can it be removed and another case installed?

I see both (separated) SATA data and power - can this run a 3.5" SATA HDD? I think the 864s can/could with help.